ZMQ-2729 AC220V 90dB Buzzer Beeper Alarm Siren for Arduino
ZMQ-2729 AC220V 90dB Buzzer Beeper Alarm Siren for Arduino
ZMQ-2729 AC220V Buzzer Beeper – 90dB Alarm Siren for Arduino & DIY Electronics
The ZMQ-2729 Buzzer Beeper is a high-performance AC220V alarm siren designed for Arduino projects, automation systems, security setups, and general electronics DIY applications. Delivering a powerful 90dB output at just 10mA current draw, this compact buzzer is an ideal audible alert component for makers, engineers, and hobbyists alike.
Key Features
- Loud 90dB Output: Clearly audible alert signal suitable for alarms, notifications, and warning systems.
- AC220V Supply Voltage: Compatible with standard mains voltage — no extra transformer or driver circuit required.
- Low Current Draw: Operates at only 10mA, keeping your circuit efficient and cool.
- Wide Operating Temperature Range: Reliable performance from -20°C to 70°C, suitable for both indoor and outdoor enclosures.
- Arduino Compatible: Integrates seamlessly with Arduino, Raspberry Pi, and other microcontroller platforms via a relay or solid-state switch.
- SMD Package: Compact surface-mount design for easy integration into PCB layouts.
- No High-Concern Chemicals: Safe materials — no restricted substances declared.
- Durable & Reliable: Built for continuous use in security panels, industrial alerts, and DIY automation projects.
Technical Specifications
| Model | ZMQ-2729 |
| Supply Voltage | AC 220V |
| Current | 10mA |
| Sound Output | 90dB |
| Operating Temperature | -20°C to 70°C |
| Package Type | SMD |
| Condition | New |
Who Is This For?
Whether you're building a home security system, a factory alert panel, or an Arduino-powered automation project, the ZMQ-2729 delivers a dependable, attention-grabbing alarm tone every time. Its mains-voltage compatibility makes it perfect for installations that need a direct AC-driven audible indicator without additional power conversion.
Made in Mainland China.
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Frequently Asked Questions
Q: Can the ZMQ-2729 buzzer be directly connected to an Arduino output pin?
A: No — because the ZMQ-2729 operates at AC220V mains voltage, it should NOT be connected directly to an Arduino GPIO pin (which outputs only 3.3V–5V DC). You must use a relay module or solid-state relay (SSR) between your Arduino and the buzzer to safely switch the AC220V supply on and off. This is standard practice for mains-voltage components in Arduino projects.
Q: What is the sound level of this alarm siren, and is it loud enough for an alarm system?
A: The ZMQ-2729 produces a 90dB sound output, which is comparable to a lawn mower or a busy factory floor — more than sufficient for security alarms, industrial alerts, and warning systems in both indoor and outdoor environments.
Q: Is the ZMQ-2729 suitable for outdoor use?
A: The buzzer's operating temperature range of -20°C to 70°C makes it well-suited for a variety of environments. For outdoor installations, it is recommended to house the component in a weatherproof enclosure to protect it from moisture and dust.